Ms Patel appeared to take a swipe at pro-Remain Home Secretary Theresa May by saying: "There is another great bonus of leaving the EU, we'll be able to design a new immigration system that brings the chaos under control and helps the economy.

"It's uncontrolled and uncontrollable while we remain in the EU. It is running at the rate of a million every three years. Last year, 270,000 arrived from Europe alone.

She added: "It is crazy that we make it so hard for Indian geniuses to come here just because they don't have EU passports and just because we have to let in anyone from Europe who feels like coming here and trying their luck at finding a job.

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Millions of immigrants are currently attempting to get into Britain

"It's not the wealthy and the corporate elite who have seen their wages undercut and the pressure on their schools and hospitals, or who can't get on to the housing ladder."

Ms Patel also rubbished the Treasury's grim predictions of what would happen to Britain's economy if Brexit is successful at the June 23 Referendum.

She said: "If the Government seriously believed the doom-laden propaganda they have been pumping out about the horrors of life after the EU, they would never have called this referendum in the first place.

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Ms Patel's comments are seen as a swipe at pro-EU Home Secretary Theresa May

"The Government thinks it can predict what will happen in the economy in 2030. Last November, the Treasury said there was going to be a windfall of £27 billion from unexpectedly high tax receipts.

"When the Budget came round in March, that had turned into a £56 billion shortfall. Fourteen years ahead? They can't even predict 14 weeks ahead."

The Essex-based MP's comments come after the release of a report by ex-HSBC chief Michael Geoghegan, and independent risk consulting specialist Peter Udale, which warned of the dangers for London if the UK remains in the EU.

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New report suggests London economy would be damaged by staying in EU

The report states: "There is a growing body of evidence which shows that EU membership comes at a significant and increasing cost to the UK.

"The EU looks inwards, not outwards. EU rules are designed to deliver faster integration and to preserve the Euro, not to deliver growth or improve international competitiveness. Evidence shows that the UK is becoming increasingly isolated within an EU dominated by the eurozone.

"Access to the single European market is not fundamental to, nor the reason for, London's success.

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"Although the EU single market is important to the UK - it accounts for one third of our financial service exports - the rest of the world accounts for two thirds and is growing more rapidly. The UK has to weigh up whether the benefit of unfettered access to the single market is really worth the constraints, costs and risks which result from our EU membership.

"The UK is set to become the victim of progressively more intense and costly discrimination. We have no effective way to prevent it."